{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "METHODS : Forty - five hospitalized elderly patients ( > 65 years old ) who required therapy with nonsteroidal antiinflammatory drugs ( NSAID ) were randomly assigned to receive either indomethacin , 150 mg / day ( Group A ) , or indomethacin 150 mg / day plus misoprostol at 0 . 6 mg / day ( Group B ) ."}
{"Chemical": ["indomethacin", "misoprostol"], "Disease": []}